path: root/src/corelib/io/qfilesystemwatcher_polling_p.h

// Copyright (C) 2016 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#ifndef QFILESYSTEMWATCHER_POLLING_P_H#define QFILESYSTEMWATCHER_POLLING_P_H//// W A R N I N G// -------------//// This file is not part of the Qt API. It exists purely as an// implementation detail. This header file may change from version to// version without notice, or even be removed.//// We mean it.//#include <QtCore/qbasictimer.h>#include <QtCore/qfileinfo.h>#include <QtCore/qmutex.h>#include <QtCore/qdatetime.h>#include <QtCore/qdir.h>#include <QtCore/qdirlisting.h>#include <QtCore/qhash.h>#include"qfilesystemwatcher_p.h"QT_REQUIRE_CONFIG(filesystemwatcher); QT_BEGIN_NAMESPACE class QPollingFileSystemWatcherEngine :public QFileSystemWatcherEngine { Q_OBJECT class FileInfo { uint ownerId; uint groupId;QFile::Permissions permissions; QDateTime lastModified; QStringList entries;static QStringList dirEntryList(const QFileInfo &fileInfo){Q_ASSERT(fileInfo.isDir()); QStringList fileNames;using F =QDirListing::IteratorFlag;constexpr auto flags =F::ExcludeOther |F::IncludeDotAndDotDot;for(constauto&entry :QDirListing(fileInfo.absoluteFilePath(), flags)) fileNames.emplace_back(entry.fileName());return fileNames;}public:FileInfo(const QFileInfo &fileInfo):ownerId(fileInfo.ownerId()),groupId(fileInfo.groupId()),permissions(fileInfo.permissions()),lastModified(fileInfo.lastModified(QTimeZone::UTC)){if(fileInfo.isDir()) entries =dirEntryList(fileInfo);} FileInfo &operator=(const QFileInfo &fileInfo){*this=FileInfo(fileInfo);return*this;}booloperator!=(const QFileInfo &fileInfo)const{if(fileInfo.isDir() && entries !=dirEntryList(fileInfo))return true;return(ownerId != fileInfo.ownerId()|| groupId != fileInfo.groupId()|| permissions != fileInfo.permissions()|| lastModified != fileInfo.lastModified(QTimeZone::UTC));}}; QHash<QString, FileInfo> files, directories;public:QPollingFileSystemWatcherEngine(QObject *parent); QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories) override; QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories) override;private:voidtimerEvent(QTimerEvent *) final;private: QBasicTimer timer;}; QT_END_NAMESPACE #endif// QFILESYSTEMWATCHER_POLLING_P_H